/*
 * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.jdbc;

import org.springframework.dao.DataRetrievalFailureException;

/**
 * Data access exception thrown when a result set did not have the correct column count,
 * for example when expecting a single column but getting 0 or more than 1 columns.
 *
 * @author Juergen Hoeller
 * @see org.springframework.dao.IncorrectResultSizeDataAccessException
 * @since 2.0
 */
@SuppressWarnings("serial")
public class IncorrectResultSetColumnCountException extends DataRetrievalFailureException {

    private final int expectedCount;

    private final int actualCount;


    /**
     * Constructor for IncorrectResultSetColumnCountException.
     *
     * @param expectedCount the expected column count
     * @param actualCount   the actual column count
     */
    public IncorrectResultSetColumnCountException(int expectedCount, int actualCount) {
        super("Incorrect column count: expected " + expectedCount + ", actual " + actualCount);
        this.expectedCount = expectedCount;
        this.actualCount = actualCount;
    }

    /**
     * Constructor for IncorrectResultCountDataAccessException.
     *
     * @param msg           the detail message
     * @param expectedCount the expected column count
     * @param actualCount   the actual column count
     */
    public IncorrectResultSetColumnCountException(String msg, int expectedCount, int actualCount) {
        super(msg);
        this.expectedCount = expectedCount;
        this.actualCount = actualCount;
    }


    /**
     * Return the expected column count.
     */
    public int getExpectedCount() {
        return this.expectedCount;
    }

    /**
     * Return the actual column count.
     */
    public int getActualCount() {
        return this.actualCount;
    }

}
